Читать книгу Lightning Rod Conference - Various - Страница 30

1. Have any buildings, in the construction of which you have been professionally engaged, or which are otherwise well known to you, been struck by lightning?

2. If so, state briefly the damage done to them, describing their general plan and construction by sketches or otherwise, particularly noting the position of any metal work to roofs, pipes, &c.

3. Were the buildings furnished with lightning conductors? If so, describe them in relation to the following heads:—

(a). Their materials and dimensions.

(b). Their attachment to building.

(c). Their connection with the ground.

(d). Their upper terminals.

(e). The height of conductor above chimney or other adjacent part of the building.

(f). If there existed more than one conductor state the distance from one another.

4. What was the distance of the point struck, horizontally and vertically from the conductor?

5. Was any damage done, and if so how much, to the conductor, and in what manner?

6. Give particulars as to any trees within a short distance of the building struck.

The replies received to this Circular are too long to be printed in full, they have therefore had to be epitomised in the following list, and consequently cannot be given as separate answers to each question.

The replies were all numbered consecutively, so that the numbers omitted in the list refer to circulars returned by members who had no information to give on the subject.